| Manufacturer | Yamaha Motor Company |
|---|---|
| Also called | Yamaha Z |
| Parent company | Yamaha Corporation |
| Predecessor | Yamaha Y110SS / Yamaha Y110SS Two |
| Successor | Yamaha Y135LC |
| Class | Moped, underbone |
| Engine | 124.3 cc cc air-cooled, 2-stroke engine Cylinder Arrangement = Forward inclined single cylinder Bore & stroke = 53.8 x 54.7 mm[1][2] |
| Power | 17.5 PS (13 kW) @ 8,000 rpm[1][2] |
| Torque | 1.85 kg·m (18.1 N·m/13.4 ft·lbf) @ 7,500 rpm[1][2] |
| Transmission | 6-speed |
| Suspension | Front: Telescopic fork Rear: Monoshock swingarm |
| Brakes | Front: Disc Rear: Disc |
| Tires | Front: 70/90-17 38P Rear: 70/90-17 44P |
| Rake, Trail | 27° / 82 mm (3.2 in) |
| Wheelbase | 1,250 mm (49 in) |
| Dimensions | L 1,900 mm (75 in) W 675 mm (26.6 in) H 1,035 mm (40.7 in) |
| Seat height | 752 mm (29.6 in) |
| Weight | 101 kg (220 lb)[1][2] (dry) |
| Fuel capacity | 5.5 L (1.5 US gal) |
| Related | Yamaha Y135LC |
Yamaha Y125Z or better known as Yamaha Z (in Greece and Europe) is a 125 cc 2-stroke underbone motorcycle produced by Yamaha. Debuted in 1998 as a successor of Yamaha Y110SS, the Y125Z was the first 2-stroke underbone motorcycle with a catalytic converter. Beside being sold in most South East Asian countries especially in Malaysia and Singapore, it was also sold in Greece. With 17,5 PS, is one of the fastest underbones ever produced and is the result of aftermarket tuning such as engine tuning and exhaust tuning. It's similar with Modenas Dinamik.
The Yamaha Y125Z is widely used in motorcycle racing tournaments held in Malaysia or Asean level. In Malaysia, the Y125Z is widely used in the Expert category of Malaysian Cub Prix tournament series.